textIn  = document.getElementById("input-textbox");
textOut = document.getElementById("output-textbox");

function process(input) {
    if (input == "hi zombie" || update) { return "Aaaarggh aaaarhrggaa rragagrg "; }
    if (input == "hello") { return "Hey!"; }
    if (input == "2+3") { return "5"; }           
}

function go() {
    var input = textIn.value;
    textIn.value = "";
    var output = process(input);
    textOut.value += output + "\n";
}
